7 files changed, 183 insertions, 706 deletions

diff --git a/AUTHORS.md b/AUTHORS.md
new file mode 100644
index 0000000..41d6454
--- /dev/null
+++ b/AUTHORS.md
@@ -0,0 +1,8 @@
+Author of the `icite` package
+=============================
+
+Robert Alessi
+: Personal email: <alessi@robertalessi.net>
+: Institutional email: <robert.alessi@cnrs.fr>
+: Affiliation: [UMR 8167 Orient & Méditerranée (Paris, France)](https://www.orient-mediterranee.com)
+: More information: <https://ctan.org/pkg/icite> or <https://sr.ht/~ralessi/icite>
diff --git a/COPYING b/COPYING
new file mode 100644
index 0000000..98355bf
--- /dev/null
+++ b/COPYING
@@ -0,0 +1,17 @@
+icite -- Index locorum citatorum
+--------------------------------
+
+Copyright (c) 2019, 2020, 2021, 2022, 2023 Robert Alessi
+<alessi@robertalessi.net>
+
+Permission to use, copy, modify, and distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/Makefile b/Makefile
index 01c10eb..fa09f0f 100644
--- a/Makefile
+++ b/Makefile
@@ -8,7 +8,7 @@ CMP = lualatex-dev
 
 exts := md bib ins dtx html
 texsamples := $(basename $(wildcard $(PWD)/samples/*.tex))
-findopts := $(foreach ext,$(exts),-or -iname "*.$(ext)")
+findopts := $(foreach ext,$(exts),-or -iname "COPYING" -or -iname "*.$(ext)")
 
 
 # Look into this later
@@ -100,6 +100,9 @@ zip: all
         zip -Drq $(PWD)/$(NAME)-$(VERS).zip $(NAME)/{samples,README.md,$(NAME).{pdf,dtx,ins}}
         rm $(NAME)
 
+hal: clean
+        zip -Drq $(PWD)/$(NAME)-$(VERS).zip *
+
 package: distclean all
         mkdir $(NAME)/
         cp Makefile README.md $(NAME).{ins,dtx,pdf} $(NAME)/
diff --git a/README.md b/README.md
index d0f059f..7d908fe 100644
--- a/README.md
+++ b/README.md
@@ -17,30 +17,29 @@ License and disclamer
 
 icite – Indices locorum citatorum
 
-Copyright ⓒ 2019--2021 Robert Alessi
+Copyright ⓒ 2019, 2020, 2021, 2023 Robert Alessi
+
+Permission to use, copy, modify, and distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
 Please send error reports and suggestions for improvements to Robert
 Alessi:
 
 -   email: <alessi@robertalessi.net>
 
--   website: <http://www.robertalessi.net/icite>
+-   website: <https://sr.ht/~ralessi/icite>
 
 -   comments, feature requests, bug reports:
-    <https://gitlab.com/ralessi/icite/issues>
-
-This program is free software: you can redistribute it and/or modify it
-under the terms of the GNU General Public License as published by the
-Free Software Foundation, either version 3 of the License, or (at your
-option) any later version.
-
-This program is distributed in the hope that it will be useful, but
-WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
-Public License for more details.
-
-You should have received a copy of the GNU General Public License along
-with this program. If not, see <http://www.gnu.org/licenses/>.
+    <https://todo.sr.ht/~ralessi/icite>
 
 This release of icite consists of the following source files:
 
@@ -50,22 +49,6 @@ This release of icite consists of the following source files:
 
 -   `Makefile`
 
-License Applicable to the Documentation
----------------------------------------
-
-Copyright ⓒ 2020--2021 Robert Alessi
-
-The documentation file `icite.pdf` that is generated from the
-`icite.dtx` source file is licensed under the GNU Free Documentation
-License, as follows:---
-
-Permission is granted to copy, distribute and/or modify this document
-  under the terms of the GNU Free Documentation License, Version 1.3
-  or any later version published by the Free Software Foundation; with
-  no Invariant Sections, no Front-Cover Texts, and no Back-Cover
-  Texts.  A copy of the license is included in the section entitled
-  “GNU Free Documentation License”.
-
 Installation
 ============
 
@@ -82,7 +65,7 @@ Browse the code
 ---------------
 
 You can browse icite repository on the web:
-<http://git.robertalessi.net/icite>
+<https://git.sr.ht/~ralessi/icite>
 
 From this page, you can download all the releases of `icite`. For
 instructions on how to install `icite`, please see above.
@@ -90,18 +73,18 @@ instructions on how to install `icite`, please see above.
 Comments, Feature requests, Bug Reports
 ---------------------------------------
 
-<https://gitlab.com/ralessi/icite/issues>
+<https://todo.sr.ht/~ralessi/icite>
 
 Download the repository
 -----------------------
 
 `icite` development is facilitated by git, a distributed version
-control system. You will need to install git (most GNU/Linux
+control system. You will need to install git (most Unix/Linux
 distributions package it in their repositories).
 
 Use this command to download the repository
 
-    git clone http://git.robertalessi.net/icite
+    git clone https://git.sr.ht/~ralessi/icite
 
 A new directory named icite will have been created, containing
 `icite`.
@@ -109,8 +92,8 @@ A new directory named icite will have been created, containing
 Git hosting
 -----------
 
-Make an account on <https://gitlab.com> and navigate (while logged in)
-to <https://gitlab.com/ralessi/icite>. Click *Fork* and you will
-have in your account your own repository of `icite` where you will
-be able to make whatever changes you like to.
+Make an account on <https://sr.ht> and navigate (while logged in) to
+<https://git.sr.ht/~ralessi/icite>. Click *Clone repo to your account*
+and you will have in your account your own repository of `icite` where
+you will be able to make whatever changes you like to.
 
diff --git a/about.html b/about.html
index 8667f4a..b031056 100644
--- a/about.html
+++ b/about.html
@@ -177,48 +177,35 @@ a specific <code>\icite</code> command and can operate with either
 BibTeX or BibLaTeX.</p>
 <h1 id="license-and-disclamer">License and disclamer</h1>
 <p>icite – Indices locorum citatorum</p>
-<p>Copyright ⓒ 2019–2021 Robert Alessi</p>
+<p>Copyright ⓒ 2019, 2020, 2021, 2023 Robert Alessi</p>
+<p>Permission to use, copy, modify, and distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.</p>
+<p>THE SOFTWARE IS PROVIDED “AS IS” AND THE AUTHOR DISCLAIMS ALL
+WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
+OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE
+FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY
+DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
+OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+SOFTWARE.</p>
 <p>Please send error reports and suggestions for improvements to Robert
 Alessi:</p>
 <ul>
 <li><p>email: <a href="mailto:alessi@robertalessi.net"
 class="email">alessi@robertalessi.net</a></p></li>
-<li><p>website: <a href="http://www.robertalessi.net/icite"
-class="uri">http://www.robertalessi.net/icite</a></p></li>
+<li><p>website: <a href="https://sr.ht/~ralessi/icite"
+class="uri">https://sr.ht/~ralessi/icite</a></p></li>
 <li><p>comments, feature requests, bug reports: <a
-href="https://gitlab.com/ralessi/icite/issues"
-class="uri">https://gitlab.com/ralessi/icite/issues</a></p></li>
+href="https://todo.sr.ht/~ralessi/icite"
+class="uri">https://todo.sr.ht/~ralessi/icite</a></p></li>
 </ul>
-<p>This program is free software: you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by the
-Free Software Foundation, either version 3 of the License, or (at your
-option) any later version.</p>
-<p>This program is distributed in the hope that it will be useful, but
-WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
-Public License for more details.</p>
-<p>You should have received a copy of the GNU General Public License
-along with this program. If not, see <a
-href="http://www.gnu.org/licenses/"
-class="uri">http://www.gnu.org/licenses/</a>.</p>
 <p>This release of icite consists of the following source files:</p>
 <ul>
 <li><p><code>icite.dtx</code></p></li>
 <li><p><code>icite.ins</code></p></li>
 <li><p><code>Makefile</code></p></li>
 </ul>
-<h2 id="license-applicable-to-the-documentation">License Applicable to
-the Documentation</h2>
-<p>Copyright ⓒ 2020–2021 Robert Alessi</p>
-<p>The documentation file <code>icite.pdf</code> that is generated from
-the <code>icite.dtx</code> source file is licensed under the GNU Free
-Documentation License, as follows:—</p>
-<p>Permission is granted to copy, distribute and/or modify this document
-under the terms of the GNU Free Documentation License, Version 1.3 or
-any later version published by the Free Software Foundation; with no
-Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A
-copy of the license is included in the section entitled “GNU Free
-Documentation License”.</p>
 <h1 id="installation">Installation</h1>
 <ol type="1">
 <li><p>Run <code>'latex icite.ins'</code> to produce the
@@ -233,30 +220,30 @@ this.</p></li>
 <h1 id="development-git-repository">Development, Git Repository</h1>
 <h2 id="browse-the-code">Browse the code</h2>
 <p>You can browse icite repository on the web: <a
-href="http://git.robertalessi.net/icite"
-class="uri">http://git.robertalessi.net/icite</a></p>
+href="https://git.sr.ht/~ralessi/icite"
+class="uri">https://git.sr.ht/~ralessi/icite</a></p>
 <p>From this page, you can download all the releases of
 <code>icite</code>. For instructions on how to install
 <code>icite</code>, please see above.</p>
 <h2 id="comments-feature-requests-bug-reports">Comments, Feature
 requests, Bug Reports</h2>
-<p><a href="https://gitlab.com/ralessi/icite/issues"
-class="uri">https://gitlab.com/ralessi/icite/issues</a></p>
+<p><a href="https://todo.sr.ht/~ralessi/icite"
+class="uri">https://todo.sr.ht/~ralessi/icite</a></p>
 <h2 id="download-the-repository">Download the repository</h2>
 <p><code>icite</code> development is facilitated by git, a distributed
-version control system. You will need to install git (most GNU/Linux
+version control system. You will need to install git (most Unix/Linux
 distributions package it in their repositories).</p>
 <p>Use this command to download the repository</p>
-<pre><code>git clone http://git.robertalessi.net/icite</code></pre>
+<pre><code>git clone https://git.sr.ht/~ralessi/icite</code></pre>
 <p>A new directory named icite will have been created, containing
 <code>icite</code>.</p>
 <h2 id="git-hosting">Git hosting</h2>
-<p>Make an account on <a href="https://gitlab.com"
-class="uri">https://gitlab.com</a> and navigate (while logged in) to <a
-href="https://gitlab.com/ralessi/icite"
-class="uri">https://gitlab.com/ralessi/icite</a>. Click <em>Fork</em>
-and you will have in your account your own repository of
-<code>icite</code> where you will be able to make whatever changes you
-like to.</p>
+<p>Make an account on <a href="https://sr.ht"
+class="uri">https://sr.ht</a> and navigate (while logged in) to <a
+href="https://git.sr.ht/~ralessi/icite"
+class="uri">https://git.sr.ht/~ralessi/icite</a>. Click <em>Clone repo
+to your account</em> and you will have in your account your own
+repository of <code>icite</code> where you will be able to make whatever
+changes you like to.</p>
 </body>
 </html>
diff --git a/icite.dtx b/icite.dtx
index 0cdb8de..1b2a7db 100644
--- a/icite.dtx
+++ b/icite.dtx
@@ -1,23 +1,21 @@
 % \iffalse meta-comment
 % icite -- Indices locorum citatorum
-% Copyright (C) 2019--2021  Robert Alesssi
+% Copyright (C) 2019, 2020, 2021, 2023  Robert Alesssi
+%
+% Permission to use, copy, modify, and distribute this software for any
+% purpose with or without fee is hereby granted, provided that the above
+% copyright notice and this permission notice appear in all copies.
+% 
+% THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+% WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+% MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+% ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+% WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+% ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+% OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 %
 % Please send error reports and suggestions for improvements to Robert
 % Alessi <alessi@robertalessi.net>
-%
-% This program is free software: you can redistribute it and/or modify
-% it under the terms of the GNU General Public License as published by
-% the Free Software Foundation, either version 3 of the License, or
-% (at your option) any later version.
-%
-% This program is distributed in the hope that it will be useful, but
-% WITHOUT ANY WARRANTY; without even the implied warranty of
-% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-% General Public License for more details.
-%
-% You should have received a copy of the GNU General Public License
-% along with this program.  If not, see
-% <http://www.gnu.org/licenses/>.
 % \fi
 %
 % \iffalse
@@ -27,7 +25,7 @@
 %<package>\NeedsTeXFormat{LaTeX2e}[1999/12/01]
 %<package>\ProvidesPackage{icite}
 %<*package>
-    [2021/07/07 v1.4-dev Make Indices locorum citatorum]
+    [2023/01/24 v1.4-dev Make Indices locorum citatorum]
 %</package>
 %<*driver>
 \documentclass{ltxdoc}
@@ -234,17 +232,23 @@
 \metaset{partof}{The icite Package}
 \metaset[print]{partof}{The \textsf{icite} Package}
 \metaset{copyrightowner}{\metapick[#1]{author}}
-\metaset{copyrightdate}{2019--2021}
-\metaset{licensemessage}{Permission is granted to copy, distribute
-  and/or modify this document under the terms of the GNU Free
-  Documentation License, Version 1.3 or any later version published by
-  the Free Software Foundation; with no Invariant Sections, no
-  Front-Cover Texts, and no Back-Cover Texts.  A copy of the license
-  is included in the section entitled ``GNU Free Documentation
-  License''.}
-\metaset{licenseurl}{https://www.gnu.org/licenses/fdl-1.3.html}
+\metaset{copyrightdate}{2019, 2020, 2021, 2023}
+\metaset{licensemessage}{Permission to use, copy, modify, and
+  distribute this software for any purpose with or without fee is
+  hereby granted, provided that the above copyright notice and this
+  permission notice appear in all copies.
+  THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
+  WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+  WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
+  AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+  DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA
+  OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+  TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+  PERFORMANCE OF THIS SOFTWARE.}
+\metaset{licenseurl}{%
+  https://cvsweb.openbsd.org/src/share/misc/license.template?rev=HEAD}
 \metaset[print]{licenseurl}{%
-  \url{https://www.gnu.org/licenses/fdl-1.3.html}}
+ \url{https://cvsweb.openbsd.org/src/share/misc/license.template?rev=HEAD}}
 \metaset[cmd]{licenselogo}{\includegraphics[scale=0.75]{#1}}
 \metawritepdfinfo
 \metawritepdfaux
@@ -416,44 +420,55 @@
 %
 % \section*{License and Disclaimer}
 % \addcontentsline{toc}{section}{License and disclamer}
-% \subsection*{License Applicable to this Document}
-% \pdfbookmark[2]{Licence applicable to this document}{copyright-doc}
-% \leavevmode\marginpar{\hfill\texttt{fdl1.3}}
-% \metapick[print]{rightstext} (See below \vref{sec:fdl}.)
-%
-% \subsection*{License Applicable to the Software}
-% \pdfbookmark[2]{Licence applicable to the software}{copyright-soft}
 % \label{sec:license-software}
-%
+% 
 % \pkg{icite} --- \metapick[print]{subtitle}
 % \metapick[print]{copyrightstatement}
+% 
+% \leavevmode\marginpar{\hfill\texttt{OpenBSD}} \pkg{icite} is
+% licensed under the terms of the so-called OpenBSD license, as it is
+% modelled after the ISC copyright, which is functionally equivalent
+% to a two-term BSD copyright with language removed that is made
+% unnecessary by the Berne convention.\footnote{More information about
+% the OpenBSD policy to which \pkg{icite} adheres:
+% \url{https://www.openbsd.org/policy.html}.}
+% 
+% \iffalse
+%<*example>
+% \fi
+\begin{minted}[linenos=false]{text}
+icite -- Index locorum citatorum
+--------------------------------
+
+Copyright (c) 2019, 2020, 2021, 2023 Robert Alessi
+<alessi@robertalessi.net>
+
+Permission to use, copy, modify, and distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+\end{minted}
+% \iffalse
+%</example>
+% \fi
 %
 % Please send error reports and suggestions for improvements to Robert
 % Alessi:
 % \begin{itemize}
 % \item email: \mailto[icite package]{Robert Alessi <alessi@roberalessi.net>}
-% \item website: \url{http://www.robertalessi.net/icite}
+% \item website: \url{https://sr.ht/~ralessi/icite/}
 % \item development: \url{http://git.robertalessi.net/icite}
 % \item comments, feature requests, bug reports:
-% \url{https://gitlab.com/ralessi/icite/issues}
+% \url{https://todo.sr.ht/~ralessi/icite}
 % \end{itemize}
 %
-% \leavevmode\marginpar{\hfill\texttt{gpl3+}}
-% This program is free software: you can redistribute it and/or modify
-% it under the terms of the GNU General Public License as published by
-% the Free Software Foundation, either version 3 of the License, or
-% (at your option) any later version.
-%
-% This program is distributed in the hope that it will be useful, but
-% WITHOUT ANY WARRANTY; without even the implied warranty of
-% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-% General Public License for more details.
-%
-% You should have received a copy of the GNU General Public License
-% along with this program.  If not, see
-% \href{http://www.gnu.org/licenses}%
-% {\texttt{<http://www.gnu.org/licenses/>}}.
-%
 % This release of \pkg{icite} consists of the following
 % source files:
 % \begin{itemize}
@@ -666,7 +681,7 @@
 % option.\footnote{See above, \vref{ref:citecmd}.}
 %
 % \paragraph{List of References} \newfeature[v1.4]
-% \changes{v1.4}{2021/07/07}{\textsf{icite} now indexes separately
+% \changes{v1.4}{2023/01/24}{\textsf{icite} now indexes separately
 % lists of references} The references inserted in the \meta{post}
 % argument of \cs{icite} may consist of single numbers\---as in |25|,
 % |vii| or |XIV|\---ranges of numbers\---as in |34--38| or
@@ -1051,546 +1066,6 @@
 % \tcbinputlisting{minted options={linenos, numbersep=1.5mm}, minted
 % language=bibtex, listing file=icite.bib, listing only}
 %
-% \section{GNU Free Documentation License}
-% \label{sec:fdl}
-% \textbf{Version 1.3, 3 November 2008}
-% 
-% \begin{center}
-%   Version 1.3, 3 November 2008
-%   
-%   Copyright \copyright{} 2000, 2001, 2002, 2007, 2008 Free
-%   Software Foundation, Inc.
-%   
-%   \bigskip
-%   
-%   \url{https://fsf.org/}
-%   
-%   \bigskip
-%   
-%   Everyone is permitted to copy and distribute verbatim copies
-%   of this license document, but changing it is not allowed.
-% \end{center}
-% 
-% \needspace{3\baselineskip}
-% \begin{center}
-%   {\bf\large Preamble}
-% \end{center}
-% 
-% The purpose of this License is to make a manual, textbook, or other
-% functional and useful document \enquote{free} in the sense of
-% freedom: to assure everyone the effective freedom to copy and
-% redistribute it, with or without modifying it, either commercially
-% or noncommercially.  Secondarily, this License preserves for the
-% author and publisher a way to get credit for their work, while not
-% being considered responsible for modifications made by others.
-% 
-% This License is a kind of \enquote{copyleft}, which means that
-% derivative works of the document must themselves be free in the same
-% sense.  It complements the GNU General Public License, which is a
-% copyleft license designed for free software.
-% 
-% We have designed this License in order to use it for manuals for
-% free software, because free software needs free documentation: a
-% free program should come with manuals providing the same freedoms
-% that the software does.  But this License is not limited to software
-% manuals; it can be used for any textual work, regardless of subject
-% matter or whether it is published as a printed book.  We recommend
-% this License principally for works whose purpose is instruction or
-% reference.
-% 
-% \needspace{3\baselineskip}
-% \begin{center}
-%   {\large\bf 1. APPLICABILITY AND DEFINITIONS\par}
-% \end{center}
-% 
-% This License applies to any manual or other work, in any medium,
-% that contains a notice placed by the copyright holder saying it can
-% be distributed under the terms of this License.  Such a notice
-% grants a world-wide, royalty-free license, unlimited in duration, to
-% use that work under the conditions stated herein.  The
-% \enquote{\textbf{Document}}, below, refers to any such manual or
-% work.  Any member of the public is a licensee, and is addressed as
-% \enquote{\textbf{you}}.  You accept the license if you copy, modify
-% or distribute the work in a way requiring permission under copyright
-% law.
-% 
-% A \enquote{\textbf{Modified Version}} of the Document means any work
-% containing the Document or a portion of it, either copied verbatim,
-% or with modifications and/or translated into another language.
-% 
-% A \enquote{\textbf{Secondary Section}} is a named appendix or a
-% front-matter section of the Document that deals exclusively with the
-% relationship of the publishers or authors of the Document to the
-% Document's overall subject (or to related matters) and contains
-% nothing that could fall directly within that overall subject.
-% (Thus, if the Document is in part a textbook of mathematics, a
-% Secondary Section may not explain any mathematics.)  The
-% relationship could be a matter of historical connection with the
-% subject or with related matters, or of legal, commercial,
-% philosophical, ethical or political position regarding them.
-% 
-% The \enquote{\textbf{Invariant Sections}} are certain Secondary
-% Sections whose titles are designated, as being those of Invariant
-% Sections, in the notice that says that the Document is released
-% under this License.  If a section does not fit the above definition
-% of Secondary then it is not allowed to be designated as Invariant.
-% The Document may contain zero Invariant Sections.  If the Document
-% does not identify any Invariant Sections then there are none.
-% 
-% The \enquote{\textbf{Cover Texts}} are certain short passages of
-% text that are listed, as Front-Cover Texts or Back-Cover Texts, in
-% the notice that says that the Document is released under this
-% License.  A Front-Cover Text may be at most 5 words, and a
-% Back-Cover Text may be at most 25 words.
-% 
-% A \enquote{\textbf{Transparent}} copy of the Document means a
-% machine-readable copy, represented in a format whose specification
-% is available to the general public, that is suitable for revising
-% the document straightforwardly with generic text editors or (for
-% images composed of pixels) generic paint programs or (for drawings)
-% some widely available drawing editor, and that is suitable for input
-% to text formatters or for automatic translation to a variety of
-% formats suitable for input to text formatters.  A copy made in an
-% otherwise Transparent file format whose markup, or absence of
-% markup, has been arranged to thwart or discourage subsequent
-% modification by readers is not Transparent.  An image format is not
-% Transparent if used for any substantial amount of text.  A copy that
-% is not \enquote{Transparent} is called \enquote{\textbf{Opaque}}.
-% 
-% Examples of suitable formats for Transparent copies include plain
-% ASCII without markup, Texinfo input format, LaTeX input format, SGML
-% or XML using a publicly available DTD, and standard-conforming
-% simple HTML, PostScript or PDF designed for human modification.
-% Examples of transparent image formats include PNG, XCF and JPG.
-% Opaque formats include proprietary formats that can be read and
-% edited only by proprietary word processors, SGML or XML for which
-% the DTD and/or processing tools are not generally available, and the
-% machine-generated HTML, PostScript or PDF produced by some word
-% processors for output purposes only.
-% 
-% The \enquote{\textbf{Title Page}} means, for a printed book, the
-% title page itself, plus such following pages as are needed to hold,
-% legibly, the material this License requires to appear in the title
-% page.  For works in formats which do not have any title page as
-% such, \enquote{Title Page} means the text near the most prominent
-% appearance of the work's title, preceding the beginning of the body
-% of the text.
-% 
-% The \enquote{\textbf{publisher}} means any person or entity that
-% distributes copies of the Document to the public.
-% 
-% A section \enquote{\textbf{Entitled XYZ}} means a named subunit of
-% the Document whose title either is precisely XYZ or contains XYZ in
-% parentheses following text that translates XYZ in another language.
-% (Here XYZ stands for a specific section name mentioned below, such
-% as \enquote{\textbf{Acknowledgements}},
-% \enquote{\textbf{Dedications}}, \enquote{\textbf{Endorsements}}, or
-% \enquote{\textbf{History}}.)  To \enquote{\textbf{Preserve the
-% Title}} of such a section when you modify the Document means that it
-% remains a section \enquote{Entitled XYZ} according to this
-% definition.
-% 
-% The Document may include Warranty Disclaimers next to the notice
-% which states that this License applies to the Document.  These
-% Warranty Disclaimers are considered to be included by reference in
-% this License, but only as regards disclaiming warranties: any other
-% implication that these Warranty Disclaimers may have is void and has
-% no effect on the meaning of this License.
-% 
-% \needspace{3\baselineskip}
-% \begin{center}
-%   {\large\bf 2. VERBATIM COPYING\par}
-% \end{center}
-% 
-% You may copy and distribute the Document in any medium, either
-% commercially or noncommercially, provided that this License, the
-% copyright notices, and the license notice saying this License
-% applies to the Document are reproduced in all copies, and that you
-% add no other conditions whatsoever to those of this License.  You
-% may not use technical measures to obstruct or control the reading or
-% further copying of the copies you make or distribute.  However, you
-% may accept compensation in exchange for copies.  If you distribute a
-% large enough number of copies you must also follow the conditions in
-% section~3.
-% 
-% You may also lend copies, under the same conditions stated above,
-% and you may publicly display copies.
-% 
-% \needspace{3\baselineskip}
-% \begin{center}
-%   {\large\bf 3. COPYING IN QUANTITY\par}
-% \end{center}
-% 
-% If you publish printed copies (or copies in media that commonly have
-% printed covers) of the Document, numbering more than 100, and the
-% Document's license notice requires Cover Texts, you must enclose the
-% copies in covers that carry, clearly and legibly, all these Cover
-% Texts: Front-Cover Texts on the front cover, and Back-Cover Texts on
-% the back cover.  Both covers must also clearly and legibly identify
-% you as the publisher of these copies.  The front cover must present
-% the full title with all words of the title equally prominent and
-% visible.  You may add other material on the covers in addition.
-% Copying with changes limited to the covers, as long as they preserve
-% the title of the Document and satisfy these conditions, can be
-% treated as verbatim copying in other respects.
-% 
-% If the required texts for either cover are too voluminous to fit
-% legibly, you should put the first ones listed (as many as fit
-% reasonably) on the actual cover, and continue the rest onto adjacent
-% pages.
-% 
-% If you publish or distribute Opaque copies of the Document numbering
-% more than 100, you must either include a machine-readable
-% Transparent copy along with each Opaque copy, or state in or with
-% each Opaque copy a computer-network location from which the general
-% network-using public has access to download using public-standard
-% network protocols a complete Transparent copy of the Document, free
-% of added material.  If you use the latter option, you must take
-% reasonably prudent steps, when you begin distribution of Opaque
-% copies in quantity, to ensure that this Transparent copy will remain
-% thus accessible at the stated location until at least one year after
-% the last time you distribute an Opaque copy (directly or through
-% your agents or retailers) of that edition to the public.
-% 
-% It is requested, but not required, that you contact the authors of
-% the Document well before redistributing any large number of copies,
-% to give them a chance to provide you with an updated version of the
-% Document.
-% 
-% \needspace{3\baselineskip}
-% \begin{center}
-%   {\large\bf 4. MODIFICATIONS\par}
-% \end{center}
-% 
-% You may copy and distribute a Modified Version of the Document under
-% the conditions of sections 2 and 3 above, provided that you release
-% the Modified Version under precisely this License, with the Modified
-% Version filling the role of the Document, thus licensing
-% distribution and modification of the Modified Version to whoever
-% possesses a copy of it.  In addition, you must do these things in
-% the Modified Version:
-% 
-% \begin{itemize}
-% \item[A.]  Use in the Title Page (and on the covers, if any) a title
-%   distinct from that of the Document, and from those of previous
-%   versions (which should, if there were any, be listed in the
-%   History section of the Document).  You may use the same title as a
-%   previous version if the original publisher of that version gives
-%   permission.
-%    
-%  \item[B.]  List on the Title Page, as authors, one or more persons
-%    or entities responsible for authorship of the modifications in
-%    the Modified Version, together with at least five of the
-%    principal authors of the Document (all of its principal authors,
-%    if it has fewer than five), unless they release you from this
-%    requirement.
-%    
-%  \item[C.]  State on the Title page the name of the publisher of the
-%    Modified Version, as the publisher.
-%    
-%  \item[D.]  Preserve all the copyright notices of the Document.
-%    
-%  \item[E.]  Add an appropriate copyright notice for your
-%    modifications adjacent to the other copyright notices.
-%    
-%  \item[F.]  Include, immediately after the copyright notices, a
-%    license notice giving the public permission to use the Modified
-%    Version under the terms of this License, in the form shown in the
-%    Addendum below.
-%    
-%  \item[G.]  Preserve in that license notice the full lists of
-%    Invariant Sections and required Cover Texts given in the
-%    Document's license notice.
-%    
-%  \item[H.]  Include an unaltered copy of this License.
-%    
-%  \item[I.]  Preserve the section Entitled \enquote{History},
-%    Preserve its Title, and add to it an item stating at least the
-%    title, year, new authors, and publisher of the Modified Version
-%    as given on the Title Page.  If there is no section Entitled
-%    \enquote{History} in the Document, create one stating the title,
-%    year, authors, and publisher of the Document as given on its
-%    Title Page, then add an item describing the Modified Version as
-%    stated in the previous sentence.
-%    
-%  \item[J.]  Preserve the network location, if any, given in the
-%    Document for public access to a Transparent copy of the Document,
-%    and likewise the network locations given in the Document for
-%    previous versions it was based on.  These may be placed in the
-%    \enquote{History} section.  You may omit a network location for a
-%    work that was published at least four years before the Document
-%    itself, or if the original publisher of the version it refers to
-%    gives permission.
-%    
-%  \item[K.]  For any section Entitled \enquote{Acknowledgements} or
-%    \enquote{Dedications}, Preserve the Title of the section, and
-%    preserve in the section all the substance and tone of each of the
-%    contributor acknowledgements and/or dedications given therein.
-%    
-%  \item[L.]  Preserve all the Invariant Sections of the Document,
-%    unaltered in their text and in their titles.  Section numbers or
-%    the equivalent are not considered part of the section titles.
-%    
-%  \item[M.]  Delete any section Entitled \enquote{Endorsements}.
-%    Such a section may not be included in the Modified Version.
-%    
-%  \item[N.]  Do not retitle any existing section to be Entitled
-%    \enquote{Endorsements} or to conflict in title with any Invariant
-%    Section.
-%    
-%  \item[O.]  Preserve any Warranty Disclaimers.
-% \end{itemize}
-% 
-% If the Modified Version includes new front-matter sections or
-% appendices that qualify as Secondary Sections and contain no
-% material copied from the Document, you may at your option designate
-% some or all of these sections as invariant.  To do this, add their
-% titles to the list of Invariant Sections in the Modified Version's
-% license notice.  These titles must be distinct from any other
-% section titles.
-% 
-% You may add a section Entitled \enquote{Endorsements}, provided it
-% contains nothing but endorsements of your Modified Version by
-% various parties---for example, statements of peer review or that the
-% text has been approved by an organization as the authoritative
-% definition of a standard.
-% 
-% You may add a passage of up to five words as a Front-Cover Text, and
-% a passage of up to 25 words as a Back-Cover Text, to the end of the
-% list of Cover Texts in the Modified Version.  Only one passage of
-% Front-Cover Text and one of Back-Cover Text may be added by (or
-% through arrangements made by) any one entity.  If the Document
-% already includes a cover text for the same cover, previously added
-% by you or by arrangement made by the same entity you are acting on
-% behalf of, you may not add another; but you may replace the old one,
-% on explicit permission from the previous publisher that added the
-% old one.
-% 
-% The author(s) and publisher(s) of the Document do not by this
-% License give permission to use their names for publicity for or to
-% assert or imply endorsement of any Modified Version.
-% 
-% \needspace{3\baselineskip}
-% \begin{center}
-%   {\large\bf 5. COMBINING DOCUMENTS\par}
-% \end{center}
-% 
-% You may combine the Document with other documents released under
-% this License, under the terms defined in section~4 above for
-% modified versions, provided that you include in the combination all
-% of the Invariant Sections of all of the original documents,
-% unmodified, and list them all as Invariant Sections of your combined
-% work in its license notice, and that you preserve all their Warranty
-% Disclaimers.
-% 
-% The combined work need only contain one copy of this License, and
-% multiple identical Invariant Sections may be replaced with a single
-% copy.  If there are multiple Invariant Sections with the same name
-% but different contents, make the title of each such section unique
-% by adding at the end of it, in parentheses, the name of the original
-% author or publisher of that section if known, or else a unique
-% number.  Make the same adjustment to the section titles in the list
-% of Invariant Sections in the license notice of the combined work.
-% 
-% In the combination, you must combine any sections Entitled
-% \enquote{History} in the various original documents, forming one
-% section Entitled \enquote{History}; likewise combine any sections
-% Entitled \enquote{Acknowledgements}, and any sections Entitled
-% \enquote{Dedications}.  You must delete all sections Entitled
-% \enquote{Endorsements}.
-% 
-% \needspace{3\baselineskip}
-% \begin{center}
-%   {\large\bf 6. COLLECTIONS OF DOCUMENTS\par}
-% \end{center}
-% 
-% You may make a collection consisting of the Document and other
-% documents released under this License, and replace the individual
-% copies of this License in the various documents with a single copy
-% that is included in the collection, provided that you follow the
-% rules of this License for verbatim copying of each of the documents
-% in all other respects.
-% 
-% You may extract a single document from such a collection, and
-% distribute it individually under this License, provided you insert a
-% copy of this License into the extracted document, and follow this
-% License in all other respects regarding verbatim copying of that
-% document.
-% 
-% \needspace{3\baselineskip}
-% \begin{center}
-% {\large\bf 7. AGGREGATION WITH INDEPENDENT WORKS\par}
-% \end{center}
-% 
-% A compilation of the Document or its derivatives with other separate
-% and independent documents or works, in or on a volume of a storage
-% or distribution medium, is called an \enquote{aggregate} if the
-% copyright resulting from the compilation is not used to limit the
-% legal rights of the compilation's users beyond what the individual
-% works permit.  When the Document is included in an aggregate, this
-% License does not apply to the other works in the aggregate which are
-% not themselves derivative works of the Document.
-% 
-% If the Cover Text requirement of section~3 is applicable to these
-% copies of the Document, then if the Document is less than one half
-% of the entire aggregate, the Document's Cover Texts may be placed on
-% covers that bracket the Document within the aggregate, or the
-% electronic equivalent of covers if the Document is in electronic
-% form.  Otherwise they must appear on printed covers that bracket the
-% whole aggregate.
-% 
-% \needspace{3\baselineskip}
-% \begin{center}
-%   {\large\bf 8. TRANSLATION\par}
-% \end{center}
-% 
-% Translation is considered a kind of modification, so you may
-% distribute translations of the Document under the terms of
-% section~4.  Replacing Invariant Sections with translations requires
-% special permission from their copyright holders, but you may include
-% translations of some or all Invariant Sections in addition to the
-% original versions of these Invariant Sections.  You may include a
-% translation of this License, and all the license notices in the
-% Document, and any Warranty Disclaimers, provided that you also
-% include the original English version of this License and the
-% original versions of those notices and disclaimers.  In case of a
-% disagreement between the translation and the original version of
-% this License or a notice or disclaimer, the original version will
-% prevail.
-% 
-% If a section in the Document is Entitled \enquote{Acknowledgements},
-% \enquote{Dedications}, or \enquote{History}, the requirement
-% (section~4) to Preserve its Title (section~1) will typically require
-% changing the actual title.
-% 
-% \needspace{3\baselineskip}
-% \begin{center}
-%   {\large\bf 9. TERMINATION\par}
-% \end{center}
-% 
-% You may not copy, modify, sublicense, or distribute the Document
-% except as expressly provided under this License.  Any attempt
-% otherwise to copy, modify, sublicense, or distribute it is void, and
-% will automatically terminate your rights under this License.
-% 
-% However, if you cease all violation of this License, then your
-% license from a particular copyright holder is reinstated (a)
-% provisionally, unless and until the copyright holder explicitly and
-% finally terminates your license, and (b) permanently, if the
-% copyright holder fails to notify you of the violation by some
-% reasonable means prior to 60 days after the cessation.
-% 
-% Moreover, your license from a particular copyright holder is
-% reinstated permanently if the copyright holder notifies you of the
-% violation by some reasonable means, this is the first time you have
-% received notice of violation of this License (for any work) from
-% that copyright holder, and you cure the violation prior to 30 days
-% after your receipt of the notice.
-% 
-% Termination of your rights under this section does not terminate the
-% licenses of parties who have received copies or rights from you
-% under this License.  If your rights have been terminated and not
-% permanently reinstated, receipt of a copy of some or all of the same
-% material does not give you any rights to use it.
-% 
-% \needspace{3\baselineskip}
-% \begin{center}
-%   {\large\bf 10. FUTURE REVISIONS OF THIS LICENSE\par}
-% \end{center}
-% 
-% The Free Software Foundation may publish new, revised versions of
-% the GNU Free Documentation License from time to time.  Such new
-% versions will be similar in spirit to the present version, but may
-% differ in detail to address new problems or concerns.  See
-% \url{https://www.gnu.org/licenses/}.
-% 
-% Each version of the License is given a distinguishing version
-% number.  If the Document specifies that a particular numbered
-% version of this License \enquote{or any later version} applies to
-% it, you have the option of following the terms and conditions either
-% of that specified version or of any later version that has been
-% published (not as a draft) by the Free Software Foundation.  If the
-% Document does not specify a version number of this License, you may
-% choose any version ever published (not as a draft) by the Free
-% Software Foundation.  If the Document specifies that a proxy can
-% decide which future versions of this License can be used, that
-% proxy's public statement of acceptance of a version permanently
-% authorizes you to choose that version for the Document.
-% 
-% \needspace{3\baselineskip}
-% \begin{center}
-%   {\large\bf 11. RELICENSING\par}
-% \end{center}
-% 
-% \enquote{Massive Multiauthor Collaboration Site} (or \enquote{MMC
-% Site}) means any World Wide Web server that publishes copyrightable
-% works and also provides prominent facilities for anybody to edit
-% those works.  A public wiki that anybody can edit is an example of
-% such a server.  A \enquote{Massive Multiauthor Collaboration} (or
-% \enquote{MMC}) contained in the site means any set of copyrightable
-% works thus published on the MMC site.
-% 
-% \enquote{CC-BY-SA} means the Creative Commons Attribution-Share
-% Alike 3.0 license published by Creative Commons Corporation, a
-% not-for-profit corporation with a principal place of business in San
-% Francisco, California, as well as future copyleft versions of that
-% license published by that same organization.
-% 
-% \enquote{Incorporate} means to publish or republish a Document, in
-% whole or in part, as part of another Document.
-% 
-% An MMC is \enquote{eligible for relicensing} if it is licensed under
-% this License, and if all works that were first published under this
-% License somewhere other than this MMC, and subsequently incorporated
-% in whole or in part into the MMC, (1) had no cover texts or
-% invariant sections, and (2) were thus incorporated prior to November
-% 1, 2008.
-% 
-% The operator of an MMC Site may republish an MMC contained in the
-% site under CC-BY-SA on the same site at any time before August 1,
-% 2009, provided the MMC is eligible for relicensing.
-% 
-% \needspace{3\baselineskip}
-% \begin{center}
-%   {\large\bf ADDENDUM: How to use this License for your documents\par}
-% \end{center}
-% 
-% To use this License in a document you have written, include a copy
-% of the License in the document and put the following copyright and
-% license notices just after the title page:
-% 
-% \bigskip
-% \begin{quote}
-%   Copyright \copyright{} YEAR YOUR NAME.  Permission is granted to
-%   copy, distribute and/or modify this document under the terms of
-%   the GNU Free Documentation License, Version 1.3 or any later
-%   version published by the Free Software Foundation; with no
-%   Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
-%   A copy of the license is included in the section entitled
-%   \enquote{GNU Free Documentation License}.
-% \end{quote}
-% \bigskip
-%     
-% If you have Invariant Sections, Front-Cover Texts and Back-Cover
-% Texts, replace the \enquote{with \dots\ Texts.}\ line with this:
-% 
-% \bigskip
-% \begin{quote}
-%   with the Invariant Sections being LIST THEIR TITLES, with the
-%   Front-Cover Texts being LIST, and with the Back-Cover Texts being LIST.
-% \end{quote}
-% \bigskip
-%     
-% If you have Invariant Sections without Cover Texts, or some other
-% combination of the three, merge those two alternatives to suit the
-% situation.
-% 
-% If your document contains nontrivial examples of program code, we
-% recommend releasing these examples in parallel under your choice of
-% free software license, such as the GNU General Public License,
-% to permit their use in free software.
-%
-%
 %\StopEventually{}
 %
 % \section{Implementation}
diff --git a/icite.ins b/icite.ins
index d29cefb..9728be0 100644
--- a/icite.ins
+++ b/icite.ins
@@ -1,27 +1,28 @@
 %%
 %% icite -- Indices locorum citatorum
 %% 
-%% Copyright (C) 2019--2020 by Robert Alessi <alessi@robertalessi.net>
+%% Copyright (C) 2019, 2020, 2021, 2023 by Robert Alessi
+%% <alessi@robertalessi.net>
 %% 
+%% Permission to use, copy, modify, and distribute this software for any
+%% purpose with or without fee is hereby granted, provided that the above
+%% copyright notice and this permission notice appear in all copies.
+%% 
+%% THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+%% WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+%% MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+%% ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+%% WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+%% ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+%% OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+%%
 %% Please send error reports and suggestions for improvements to Robert
 %% Alessi <alessi@robertalessi.net>
 %% 
-%% This program is free software: you can redistribute it and/or modify
-%% it under the terms of the GNU General Public License as published by
-%% the Free Software Foundation, either version 3 of the License, or
-%% (at your option) any later version.
-%% 
-%% This program is distributed in the hope that it will be useful, but
-%% WITHOUT ANY WARRANTY; without even the implied warranty of
-%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-%% General Public License for more details.
-%% 
-%% You should have received a copy of the GNU General Public License
-%% along with this program.  If not, see
-%% <http://www.gnu.org/licenses/>.
 %% 
 %% This work consists of the file icite.dtx, icite.ins and a Makefile.
-%% Running "make" generates the derived files README.md, icite.pdf and icite.sty.
+%% Running "make" generates the derived files README.md, icite.pdf and
+%% icite.sty.
 %% Running "make inst" installs the files in the user's TeX tree.
 %% Running "make install" installs the files in the local TeX tree.
 %% 
@@ -30,26 +31,29 @@
 \askforoverwritefalse
 \preamble
 
-icite -- Indices locorum citatorum
+This is a generated file.
 
-Copyright (C) 2019--2020 by Robert Alessi <alessi@robertalessi.net>
+This file is part of the `icite' package
 
-Please send error reports and suggestions for improvements to Robert
-Alessi <alessi@robertalessi.net>
+icite -- Indices locorum citatorum
+
+Copyright (C) 2019, 2020, 2021, 2023 by Robert Alessi
+<alessi@robertalessi.net>
 
-This program is free software: you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
+Permission to use, copy, modify, and distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
 
-This program is distributed in the hope that it will be useful, but
-WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-General Public License for more details.
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
-You should have received a copy of the GNU General Public License
-along with this program.  If not, see
-<http://www.gnu.org/licenses/>.
+Please send error reports and suggestions for improvements to Robert
+Alessi <alessi@robertalessi.net>
 
 This work consists of the file icite.dtx, icite.ins and a Makefile.
 Running "make" generates the derived files README.md, icite.pdf and icite.sty.